Claude Fable 5.1 vs Gemini 2.5 Flash Preview 05.20
As of Oct 14, 2026, Claude Fable 5.1 leads Gemini 2.5 Flash Preview 05.20 in 2 of 2 shared categories: Math and Abstraction (ARC).
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
Gemini 2.5 Flash Preview 05.20
#28 Best current rank: #28 in Math, as of Oct 14, 2026.
| Category | Claude Fable 5.1 | Gemini 2.5 Flash Preview 05.20 |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · May 20, 2025 |
| Math | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 2026 | #28 · #28 in Math Margin 60 Epoch AI benchmarking hub · May 20, 2025 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Agentic | #3 · Near-SOTA · Coding › Agentic Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #5 · Near-SOTA · Coding › Web dev Margin 3.738317757009341 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | — |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | #52 · #52 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 20, 2025 |
Claude Fable 5.1: $20 per 1M blended tokens.
Gemini 2.5 Flash Preview 05.20: price per 1M tokens is unset in the catalog.
Claude Fable 5.1: closed weights.
Gemini 2.5 Flash Preview 05.20: closed weights.
Math: As of Oct 14, 2026, Claude Fable 5.1 leads Gemini 2.5 Flash Preview 05.20 in Math at #2 against #28.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5.1 leads Gemini 2.5 Flash Preview 05.20 in Abstraction (ARC) at #3 against #52.
Claude Fable 5.1 · Gemini 2.5 Flash Preview 05.20
Claude Fable 5.1 or Gemini 2.5 Flash Preview 05.20?
As of Oct 14, 2026, Claude Fable 5.1 leads Gemini 2.5 Flash Preview 05.20 in 2 of 2 shared categories: Math and Abstraction (ARC).
Claude Fable 5.1 or Gemini 2.5 Flash Preview 05.20 for Math?
As of Oct 14, 2026, Claude Fable 5.1 leads Gemini 2.5 Flash Preview 05.20 in Math at #2 against #28.
Claude Fable 5.1 or Gemini 2.5 Flash Preview 05.20 for Abstraction (ARC)?
As of Oct 14, 2026, Claude Fable 5.1 leads Gemini 2.5 Flash Preview 05.20 in Abstraction (ARC) at #3 against #52.